Finding the Fourth Proportional to 2,095.32, 2,891.16 and 1,210.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.32 : 2,891.16 = 1,210.80 : x
2. Step 2: Convert to fraction form
   2,095.32/2,891.16 = 1,210.80/x
3. Step 3: Cross multiply
   2,095.32x = 2,891.16 × 1,210.80
4. Step 4: Simplify right side
   2,095.32x = 3,500,616.53
5. Step 5: Solve for x
   x = 3,500,616.53/2,095.32
6. Step 6: Final answer
   x = 1,670.68